A-ha. It sounds like maybe the screw I took out was a 'top screw' as you guys are describing. It was about 1/4" in diameter, much bigger than you would expect for a set screw. I'll take a look into the hole tomorrow to see if there is a second screw in there. I suspect there is. I'm glad I didn't resort to the crowbar yet.
Thanks for the offer of an original handle, Chipmunk... let's hope it doesn't come to that!
